Mystic Sisterhood

Spiritual, Paranormal & Natural Science Forums



Next Chat Event

asian sea nomad genetic adaptation for diving These Asian Sea Nomads Are the First Known Humans to Have a Genetic Adaptation to Diving 5nvklj





asian sea nomad genetic adaptation for diving These Asian Sea Nomads Are the First Known Humans to Have a Genetic Adaptation to Diving 9tpt39

..


asian sea nomad genetic adaptation for diving These Asian Sea Nomads Are the First Known Humans to Have a Genetic Adaptation to Diving

Cloud
Cloud
Admin

Female Zodiac : Capricorn Posts : 3984
Points : 9572
Times User Thanked: : 177
Join date : 2018-01-12

asian sea nomad genetic adaptation for diving These Asian Sea Nomads Are the First Known Humans to Have a Genetic Adaptation to Diving Empty asian sea nomad genetic adaptation for diving These Asian Sea Nomads Are the First Known Humans to Have a Genetic Adaptation to Diving

Post by Cloud on Fri Jan 10, 2020 9:23 am

I pride myself as a blue mind who loves the water with a strange obsession. Sadly, I can’t hold my breath underwater for up to a minute. The average healthy person who isn’t trained in static apnea can hold their breath for a maximum of two minutes underwater, with the added benefit of breathing in pure oxygen beforehanD

Now imagine a tribe of people, an ethnicity that is genetically adapted to survive underwater without oxygen for at least 13 minutes on an average. The Bajau Laut people of Southeast Asia are not specially trained in modern static apnea, but they’ve been discovered to have evolved physiologically and genetically, gaining new features that have basically turned them to human seals [1].

The diving reflex is a group of automatic responses that occur when the face of an air-breathing mammal is submerged into water. Your blood vessels constrict, your spleen contracts, and your heart rate slows in response to being low on oxygen. Your body will try to maximize its oxygen reserves until you can breathe in oxygen again. The splenic contraction is especially important as it releases red blood cells and increases the oxygen capacity of the blood.

Sea Gypsies
The Bajau people are a seafaring, nomadic, fishing clan who spend almost 60 percent of their life deep-diving underwater. A 2018 study published in the Journal Cell found that they may have evolved to have larger spleens, estimably 50 percent bigger than that of an average person [2]. This enables them to maintain the diving reflex for much longer while underwater. An enlarged spleen would mean a more sufficient red blood cell reservoir for deep-diving purposes. More red blood cells would mean that you would be able to carry more oxygen in your blood, allowing for longer dives. Essentially improving how efficient we are at utilizing the oxygen we breathe in.


The Bajau are subsistent people found in the waters off Indonesia, Malaysia, and the Philippines, living in long houseboats known as lepas. They fish for their food and only come to the town to trade for other items or to seek shelter from storms. The Bajau have lived on the sea for many centuries and about 200 years ago, some populations began to settle on the shores, especially in and on the coasts of Malaysia [3].

They have several traditional methods of fishing, with diving being the most common. Using wooden goggles and hand weights, they swim as deep as 30 meters (100 feet) into the water to catch fish for survival. They also love to dive for a particular sea cucumber species known as trepang, with which local delicacies and soups are mad


The researchers found that members of the tribe who do not dive also have the genetic mutation of an enlarged spleen. They suspect that a particular gene known as PDE10A might be responsible for the mutation in the Bajau. PDE10A controls a thyroid hormone known as T4 which increases metabolic rates and combats low oxygen levels in times of distress. T4 has been linked to larger spleen sizes in mice. Also, mice that have been manipulated to have lower amounts of T4 would end up with smaller spleens.

Source
[You must be registered and logged in to see this link.]


_________________
asian sea nomad genetic adaptation for diving These Asian Sea Nomads Are the First Known Humans to Have a Genetic Adaptation to Diving Jl2e89
Cloud
Cloud
Admin

Female Zodiac : Capricorn Posts : 3984
Points : 9572
Times User Thanked: : 177
Join date : 2018-01-12

asian sea nomad genetic adaptation for diving These Asian Sea Nomads Are the First Known Humans to Have a Genetic Adaptation to Diving Empty Re: asian sea nomad genetic adaptation for diving These Asian Sea Nomads Are the First Known Humans to Have a Genetic Adaptation to Diving

Post by Cloud on Fri Jan 10, 2020 9:25 am



_________________
asian sea nomad genetic adaptation for diving These Asian Sea Nomads Are the First Known Humans to Have a Genetic Adaptation to Diving Jl2e89
Dragon
Dragon
Senior Administrator
Senior Administrator

Posts : 3426
Points : 15349
Times User Thanked: : 216
Join date : 2018-01-18

asian sea nomad genetic adaptation for diving These Asian Sea Nomads Are the First Known Humans to Have a Genetic Adaptation to Diving Empty Re: asian sea nomad genetic adaptation for diving These Asian Sea Nomads Are the First Known Humans to Have a Genetic Adaptation to Diving

Post by Dragon on Fri Jan 10, 2020 4:56 pm

Some Bajau intentionally rupture their eardrums at an early age to facilitate diving and hunting at sea.

A 2018 study showed that Bajau spleens are about 50 percent larger than those of a neighboring land-based group, the Saluan, letting them store more haemoglobin-rich blood, which is expelled into the bloodstream when the spleen contracts at depth, allowing breath-holding dives of longer duration.

Source

Awesome Topic, Thank-You


_________________
asian sea nomad genetic adaptation for diving These Asian Sea Nomads Are the First Known Humans to Have a Genetic Adaptation to Diving 334pu7m
Dragon
Dragon
Senior Administrator
Senior Administrator

Posts : 3426
Points : 15349
Times User Thanked: : 216
Join date : 2018-01-18

asian sea nomad genetic adaptation for diving These Asian Sea Nomads Are the First Known Humans to Have a Genetic Adaptation to Diving Empty Re: asian sea nomad genetic adaptation for diving These Asian Sea Nomads Are the First Known Humans to Have a Genetic Adaptation to Diving

Post by Dragon on Fri Jan 10, 2020 5:03 pm



In Malaysia, perhaps nobody knows the water better than a group whose name literally means ‘sea gypsies.’

For generations, the Bajau people have lived off the sea, but there is growing concern about whether they can sustain their lifestyle.


_________________
asian sea nomad genetic adaptation for diving These Asian Sea Nomads Are the First Known Humans to Have a Genetic Adaptation to Diving 334pu7m
Nativelynn
Nativelynn
Member
Member

Female Zodiac : Libra Posts : 28
Points : 69
Times User Thanked: : 12
Join date : 2020-01-03
Location : USA

asian sea nomad genetic adaptation for diving These Asian Sea Nomads Are the First Known Humans to Have a Genetic Adaptation to Diving Empty Re: asian sea nomad genetic adaptation for diving These Asian Sea Nomads Are the First Known Humans to Have a Genetic Adaptation to Diving

Post by Nativelynn on Sun Jan 12, 2020 12:54 am

That is interesting to know this. I can hold my breath for at least 30 seconds but not much longer. This was an interesting thing.
Cloud
Cloud
Admin

Female Zodiac : Capricorn Posts : 3984
Points : 9572
Times User Thanked: : 177
Join date : 2018-01-12

asian sea nomad genetic adaptation for diving These Asian Sea Nomads Are the First Known Humans to Have a Genetic Adaptation to Diving Empty Re: asian sea nomad genetic adaptation for diving These Asian Sea Nomads Are the First Known Humans to Have a Genetic Adaptation to Diving

Post by Cloud on Sun Jan 12, 2020 4:33 am

Wow, thanks for sharing Dragon. I hope Mermaid sees this thread. Maybe she was part of this tribe in a past life Wink


_________________
asian sea nomad genetic adaptation for diving These Asian Sea Nomads Are the First Known Humans to Have a Genetic Adaptation to Diving Jl2e89

Sponsored content

asian sea nomad genetic adaptation for diving These Asian Sea Nomads Are the First Known Humans to Have a Genetic Adaptation to Diving Empty Re: asian sea nomad genetic adaptation for diving These Asian Sea Nomads Are the First Known Humans to Have a Genetic Adaptation to Diving

Post by Sponsored content


    Current date/time is Sun Jan 26, 2020 4:07 pm